FRESNEL LENS AND ITS MANUFACTURE,申请号JP19910044622-传众专利搜索

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发明名称	FRESNEL LENS AND ITS MANUFACTURE
摘要
申请公布号	JPH04281443(A)	申请公布日期	1992.10.07
申请号	JP19910044622	申请日期	1991.03.11
申请人	HITACHI LTD	发明人	NISHIGUCHI TAKASHI;SAWA SHINJI
分类号	G02B3/08;G03B21/62	主分类号	G02B3/08
代理机构		代理人
主权项
地址

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